Track: Systems and Equipment
Chair: Shin-ichi Tanabe, Ph.D., Fellow ASHRAE, Department of Architecture, Waseda University, Tokyo, Japan

We introduce two buildings of the ZEB family with the SHASE Award. One is achieved ZEB in Yokohama in 2015. This ZEB comprises both passive and active energy-saving measures, including daytime lighting, natural ventilation, green work approaches, radiant cooling and fuel cells as well as an energy-generation system including a photovoltaic wraparound façade. Another one is nearly ZEB, which achieved annual energy consumption of 1,117MJ per square meter. This building is a mid-size office in Tokyo, so it’s important to ensure the VRV system is both innovative and user-friendly. The ZEB family includes ZEB, ZEB ready and nearly ZEB.

1. Targeting Urban ZEB in Japan
Takuya Tanaka, Taisei Corporation, Tokyo, Japan
This presentation introduces a demonstration project that aims to realize ZEB in urban areas. Its key achievement is showcasing the potential of ZEB, even in confined spaces and high-rise buildings. In this building, an innovative "energy-saving system" combining passive (daylighting, natural ventilation and green work style) and active methods and an "energy-generation system" which wraps a building in photovoltaic cells are adopted. Knowledge concerning energy management during the operation phase is also shared. This project is set to achieve an annual energy balance of zero (75% reduction in energy consumption).

2. An Air-Conditioning Plan Pursuing Energy Conservation within Urban Medium-Sized Office with an Individual AirConditioning System
Hideki Morita, Shimizu Corporation, Tokyo, Japan
This project aims to create environmental technologies and improve intellectual productivity by achieving significant energysaving while approaching “Zero-Energy Building” in medium-sized offices with individual air-conditioning systems in urban areas. The first key point is, natural energy using features such as natural daylighting, ventilation and outside-air cooling by adopting an environmental façade and an eco-void. The second key point is, comfortable energy-saving air-conditioning system by combining “whole-floor air-conditioning“, “central outside AHU for latent heat processing” and “high-efficiency VRV.” This building achieved annual energy consumption of 1,117MJ/square meter.

Presented: Sunday, January 21, 2018, 9:45-10:45 AM
Run Time: 60 min.

This is a zip file that consists of PowerPoint slides synchronized with the audio-recording of the speaker (recorded presentation), PDF files of the slides, and audio only (mp3) for each presentation.